Release abatement measure (RAM) plan status report & remedial monitoring report #1 : 508 Somerville Avenue, Somerville, MA / prepared for: Mr. Luz Londono, 508 Somerville Avenue, LLC & Mr. Douglas Beaudet DG Realty & Development ; prepared by: IES, Inc.

2015·9.2 MB·English

by  IES (Firm)

SOMERVILLE PUBLIC LIBRARY
3 11 55 00825 7169
Release Abatement Measure (RAM) Plan Status Report &
Remedial Monitoring Report #1
508 Somerville Avenue
Somerville, MA
RTN 3-32186
November 24, 2015
Prepared For:
Mr. Luz Londono
508 Somerville Avenue, LLC
10 Tower Court, #3
Somerville, MA 02143
&
Mr. Douglas Beaudet
DG Reatly & Development
14 Ibbetson Street, Suite #3
Somerville, MA 02143
Prepared By:
IES, Inc.
7 Kimball Lane, Building A
Lynnfield, MA 01940
617-623-8880
IES Project #2013-10-0836
IES
Inc
ENVIRONMENTAL CONSULTANTS
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TABLE OF CONTENTS
SECTION PAGE
1.0 Introduction 1
2.0 Release Abatement Measure (RAM) Status and Remedial Monitoring Report 1
(a) The status of the response operations; 1
RAM Activities Conducted To Date 1
Construction Related RAM Activities 3
(b) . Any significant new site information or data: 4
(c) . Details of and/or plans for the management of Remediation Waste, Remedial
Wastewater, and/or Remedial Additives; 4
(d) . Any other information that the Department, during this review and evaluation of a
Status Report, determines to be necessaiy to complete said Status Report, in view
of site specific circumstances and condition; 5
(e) . An LSP Opinion as to whether the Release Abatement Measure is
being conducted in conformance with the Release Abatement Measure Plan,
and any conditions of approval established by the Department; 5
ATTACHMENT A: FIGURES
Figure 1 - USGS Map
Figure 2 - Assessors Map
Figure 3 - Disposal Site Plan
Figure 4 - RAM Site Plan
Pictures
ATTACHMENT B: Tables
ATTACHMENT C: Dust Monitoring Reports
ATTACHMENT D: Laboratory Report/Chain of Custody
(Previously Not Submitted)
ATTACHMENT E: eDEP Authorization Letter
IES
Inc.
ENVfllOKMEKT*. CC*tf$ULTAtfTS

508 Somerville Avenue 1 Somerville, MA
Release Abatement Measure (RAM)
Status Report #1 Transmittal
Commercial Property
508 Somerville Avenue
Somerville, MA 02143
RTN 3-32186
1.0 Introduction:
On behalf of 508 Somerville Avenue, LLC IES, Inc. has prepared this Release Abatement
Measure (RAM) Status Report #1 pursuant to 310 CMR 40.0445 for the Disposal Site associated
with RTN 3-332186 located at 508 Somerville Avenue, Somerville, MA.
As detailed in the previously submitted “Amended Release Abatement Measure (RAM) Plan”
dated July 22, 2014 prepared by IES, Inc., the objective of the RAM is to reduce the VPH, EPH
and Metal contamination, present in the soil and/or groundwater at the site to achieve a condition
of “No Significant Risk” consistent with the proposed future residential use of the Disposal Site.
The cleanup goal is the applicable Method 1 S-l/GW-2 and GW-3 soil standards, and Method 1
GW-2 and/or GW-3 groundwater standards; or background, if feasible.
Please see Figures 3 and 4 in Attachment “A” for the Disposal Site MAP and RAM Site Plan.
2.0 Release Abatement Measure Status and Remedial Monitoring Report:
Pursuant to 310 CMR 40.0445(2) a Release Abatement Measure Status and Remedial
Monitoring Report shall contain the following:
(a) The status of the response operations;
RAM Activities Conducted to Date:
Since the submittal of the aforementioned “Amended Release Abatement Measure (RAM)
Plan”, response actions conducted to date included the inoculation of 30 injection points from
September 2 through September 11, 2015 with RegenOx® In Situ Chemical Oxidation
(RegenOx) at 504 and 508 Somerville Avenue. The injections were conducted by Soil
Exploration of Leominster, MA under the supervision of IES.
Each point was inoculated with approximately 60 lbs. of RegenOx Part A (oxidant);
approximately 42 lbs. of RegenOx Part B (Activator); approximately 39 lbs. of Oxygen Release
Compound Advanced® (ORC Advanced) and approximately 127 gallons of water.
IES, Inc. Project # 2013-10-0836
RTN 3-32186
November 24, 2015
IES
Inc_
CONSULTANTS

508 Somerville Avenue 2 Somerville, MA
The target area consisted of a vertical thickness of approximately 10 to 20 feet below grade
surface grade (bgs). The injection points were essentially advanced 10-15 feet on center within
the gasoline plume at 504 and 508 Somerville Avenue. Please see Figure 4 in Attachment “A”
for the injection locations. Please see Attachment “D” in the aforementioned Amended RAM
Plan for Rengenesis’s recommendations, including injection point locations and their proposed
Scope of Work.
Before the initiation of the remedial injection program groundwater samples were obtained from
non-injection wells at the point of the application of the remedial additives; and upgradient and
downgradient of the release area. The groundwater samples were tested for the presence of the
Contaminants of Concern (COC), and remedial additives. Regenesis recommended the
following remedial additive monitoring parameters: Dissolved Oxygen (DO), Oxygen
Reduction Potential (ORP), pH, conductivity, temperature, dissolved Iron (Fe), dissolved
Manganese (Mn), Calcium (Ca), and/or a hydrogen peroxide field test. The COC monitoring
parameters will include VPH with target VOC’s and/or EPH w/PAHs. Please see Table 9 in
Attachment “B” for a summary of the COC and Remedial Additive Monitoring results and
Attachment "D" for a copy of the laboratory report and chain of custody.
Particulate Matter Monitoring (i.e. dust monitoring) and dust suppression activities were
conducted during the remedial injection event. On September 2, 2015 the RAM injections were
conducted on the asphalt paved portion of the Disposal Site located at 504 Somerville Avenue.
Therefore, there was no exposed soil and due to the nature of the work performed in this area of
the site, dust generation was insignificant and as such, no dust monitoring was conducting on
September 2, 2015. However, please note IES did have the DustTrak II Model #8530 on-site in
case it was deemed necessary. In addition, the PRP assigned an employee to the project to
provide dust suppression activities, which included the constant application of water (misting)
to the paved and unpaved portions of the site, including even those areas where no work was
being conducted.
The DustTrak II 8350 was utilized from September 3 through 11, 2015 and the handheld
DustTrak DRX 5834 has been utilized since. Both DustTrak instruments were/are equipped
with a 2.5 micron filters and were/are programed to alarm with an action level of 600 ug/m3 or
0.6 mg/m3 for total particulate concentration.
The prevailing wind direction was noted each day and was monitored throughout the day and
the dust monitor was subsequently placed near the fence line on the leeward side of the site.
Readings were taken approximately every 20 to 30 minutes for one to two minute intervals.
Please note all the dust monitoring results are being forwarded to MassDEP in timely reports on
or about a weekly timeframe, depending on the schedule of the RAM activities. As detailed in
the aforementioned monitoring reports supplied to MassDEP, which are included in
Attachment "C" of this report, no readings exceeded the site specific action level.
In addition, the VOC Vapor Barrier was installed on November 17, 2015 in accordance with the
aforementioned RAM Plan. Mr. Timothy Boyle of MassDEP was on-site to witness the
installation. Please see Attachment "A” for pictures of the Vapor Barrier.
IES, Inc. Project # 2013-10-0836
RTN 3-32186
November 24, 2015
IES
Inc
ENVIRONMENTAL CONSULTANTS

508 Somerville Avenue 3 Somerville, MA
Construction Related RAM Activities:
IES was on-site on September 21, 2014 to observe the demolition of the concrete
slab/foundation of the former site building located at 508 Somerville Avenue. Soil that was
excavated to allow for the removal of the concrete foundation was subsequently returned to its
place of origin. No petroleum impacted soil was encountered during the removal of the
concrete slab and/or foundation. The concrete was disposed of as solid waste pursuant 310
CMR 19.000 at the Miles River facility in Ipswich, MA.
Particulate matter monitoring (i.e. dust monitoring) and dust suppression activities were
conducted during this process. Constant misting with water was applied to the paved and
unpaved portions of the site, including areas where no work was being conducted.
The handheld DustTrak DRX 5834 equipped with a 2.5 micron filter and programmed to alarm
with an action level of 600 ug/m3 or 0.6 mg/m3 for total particulate concentration was utilized to
monitoring dust concentrations.
The prevailing wind direction was noted at the start of each work day and monitored throughout
the day, with the dust monitor was subsequently placed near the fence line on the leeward side
of the site. Readings were taken approximately every 20 to 30 minutes for one to two minute
intervals. No readings exceeded the site specific action level of 0.6 mg/m3.
On September 24, 2015 IES was on-site with Global Contracting of Taunton, MA to remove an
abandoned in-ground hydraulic lift. The in ground lifts consisted of two 8' hydraulic pistons
and one approximate 60-gallon steel reservoir and was formerly located in the rear of the garage
portion of the recently razed former garage building at the Site. The remaining hydraulic oil in
the pistons and reservoirs were drained into a DOT approved 55-gallon drum. The pistons and
reservoir appeared to be in good condition and no obviously leaks were observed. In addition,
no suspect oil staining or petroleum odors were noted during the removal of the abandoned
hydraulic lift system. Post-removal confirmatory soil samples were obtained from the sidewall
and bottom of the hydraulic lift excavation. The confirmatory soil samples were screened for
headspace VOC's. The confirmatory soil sample (LS-1) with highest headspace reading of 1.1
ppm was subsequently forwarded to the Phoenix Laboratory for the laboratory analysis of
Volatile Petroleum Hydrocarbons (VPH) with target analytes and Extractable Petroleum
Hydrocarbons (EPH) with target Polynuclear Aromatic Hydrocarbons (PAHs).
The results of the confirmatory soil testing program revealed slightly elevated EPH and VPH
fractions, which were below their applicable Method 1 S-l and RCS-1 Standards. Please see
Attachment liB” for the laboratory test result summary tables.
On September 25, 2015, IES was on-site with Clean Harbors of Braintree, MA to clean the on¬
site oil water separator (OWS) and to reclaim the hydraulic oil generated during the removal of
the hydraulic lift. The hydraulic oil and OWS oily water were transported by Clean Harbors to
their Braintree facility for disposal under a hazardous waste manifest. Upon steam cleaning, the
OWS appeared to be structurally sound and no obvious cracks were noted.
IES, Inc. Project #2013-10-0836
RTN 3-32186
November 24, 2015
I
IES
Inc
ENVIRONMENTAL CONSULTANTS